I can believe a miracle because I can raise my own arm. I can believe a miracle because I can remember. I can believe it because I can speak and be understood by you.
The believers in miracles accept them (rightly or wrongly) because they have evidence for them. The disbelievers in miracles deny them (rightly or wrongly) because they have a doctrine against them.
To be a miracle worker you do not have to get a doctoral degree, become a minister, eat a particular food, or be able to meditate for long hours. All you need to do is to begin to see beauty in your life and those around you.